Lesson Worksheet: Mechanical Devices: Levers Science
In this worksheet, we will practice describing how levers work and why they are useful and identifying devices that use levers.
Q1:
Mason and Sophia are talking about levers. Who is correct?
- ASophia
- BMason
Q2:
Jacob is trying to unscrew a bolt.
Fill in the blank: The the spanner is, the easier it is to unscrew the bolt.
- Alonger
- Bshorter
Q3:
Daniel wants to unscrew this bolt. Will the bolt unscrew more easily if he uses a wrench or his bare hands?
- AWith his bare hands
- BWith a wrench
Q4:
Which image shows the best way to lift up the doll?
- AA
- BB
Q5:
Look at this image of a can of paint.
Would it be easier to open this can of paint with a long screwdriver or a coin?
- AA coin
- BA long screwdriver
Fill in the blanks to explain your answer: The edge of the lid is a pivot and the force used is the pivot.
- Apull, closer to
- Bpush, closer to
- Cpull, farther from
- Dpush, farther from
Q6:
Which image shows the harder way to lift up the pile of bricks?
- AB
- BA
Q7:
This is a lever. A lever is a device that turns a small force into a larger effect.
Fill in the blank: Using a lever would be most useful when lifting a very object.
- Alight
- Bheavy
Q8:
If we use a small push force at the end of this lever, we get a bigger push force on the other end.
Fill in the blanks: The lever makes it to lift the box because the force that David applies is the pivot than the box is.
- Aeasier, closer to
- Beasier, farther from
- Charder, farther from
- Dharder, closer to
Q9:
In which image is the robot’s weight force acting closer to the pivot?
- A2
- B1
Q10:
When a heavy object is closer to the pivot of this lever, it is easier to lift it up.
Fill in the blank: A small force applied to the lever produces a force to lift the object.
- Alarger
- Bsmaller
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